Datasheet

Page 69
78fo5002,10.luJ12.1.veR
5. Electrical Characteristics (M32C/85)
VCC1=VCC2=3.3V
)T58/C23M,58/C23M(puorG58/C23M
Switching Characteristics
(VCC1 = VCC2 = 3.0 to 3.6V, VSS = 0V at Topr = –20 to 85
o
C unless otherwise specified)
Table 5.41 Memory Expansion Mode and Microprocessor Mode
(when accessing an external memory space with the multiplexed bus)
lobmySretemaraP
tnemerusaeM
noitidnoC
dradnatS
tinU
.niM.xaM
dt
)DA-KLCB( emiTyaleDtuptuOsserddA 81sn
ht
)DA-KLCB( )dradnatsKLCB(emiTdloHtuptuOsserddA 0sn
ht
)DA-DR( )dradnatsDR(emiTdloHtuptuOsserddA
)5(
)1etoN(sn
ht
)DA-RW( )dradnatsRW(emiTdloHtuptuOsserddA
)5(
)1etoN(sn
dt
)SC-KLCB( emiTyaleDtuptuOlangiStceleS-pihC 81sn
ht
)SC-KLCB( )dradnatsKLCB(emiTdloHtuptuOlangiStceleS-pihC 0sn
ht
)SC-DR(
)dradnatsDR(emiTdloHtuptuOlangiStceleS-pihC
)5(
)1etoN(sn
ht
)SC-RW(
)dradnatsRW(emiTdloHtuptuOlangiStceleS-pihC
)5(
)1etoN(sn
dt
)DR-KLCB( emiTyaleDtuptuOlangiSDR 81sn
ht
)DR-KLCB( emiTdloHtuptuOlangiSDR 3-sn
dt
)RW-KLCB( emiTyaleDtuptuOlangiSRW 81sn
ht
)RW-KLCB( emiTdloHtuptuOlangiSRW 0sn
dt
)RW-BD( )dradnatsRW(emiTyaledtuptuOataD )2etoN(sn
ht
)BD-RW( )dradnatsRW(emiTdloHtuptuOataD
)5(
)1etoN(sn
dt
)ELA-KLCB( )dradnatsKLCB(emiTyaleDtuptuOlangiSELA 81sn
ht
)ELA-KLCB( )dradnatsKLCB(emiTdloHtuptuOlangiSELA 2-sn
dt
)ELA-DA( )dradnatssserdda(emiTyaleDtuptuOlangiSELA )3etoN(sn
ht
)DA-ELA( )dradnatssserdda(emiTdloHtuptuOlangiSELA )4etoN(sn
zdt
)DA-DR( emiTtratStaolFtuptuOsserddA 8sn
t d(DB – WR) =
10 X m
9
– 25
[ns] (if external bus cycle is aφ + bφ, m=(b+2)-1)
t
h(RD – AD) =
f
(BCLK) X 2
10
9
– 10 [ns]
t
h(WR – AD) =
f
(BCLK) X 2
10
9
– 10 [ns]
t
h(RD – CS) =
f
(BCLK) X 2
10
9
–10 [ns]
t
h(WR – CS) =
f
(BCLK) X 2
10
9
– 10 [ns]
t
h(WR – DB) =
f
(BCLK) X 2
10
9
– 20 [ns]
t
d(AD – ALE) =
f
(BCLK) X 2
10 x n
9
– 20
[ns] (if external bus cycle is aφ + bφ, n=a)
t
h(ALE – AD) =
f
(BCLK) X 2
10 x n
9
– 10
[ns] (if external bus cycle is aφ + bφ, n=a)
f
(BCLK) X 2
NOTES:
1. Values can be obtained by the following equations, according to BLCK frequency.
2. Values can be obtained by the following equations, according to BLCK frequency and external bus cycles.
3. Values can be obtained by the following equations, according to BLCK frequency and external bus cycles.
4. Values can be obtained by the following equations, according to BLCK frequency and external bus cycles.
5. tc ns is added when recovery cycle is inserted.
See Figure 5.2